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[ASSEMBL-J 



And these tables, the elements of the food of plants removed 

 from two hundred acres, by the common four course system of 

 agriculture. 



It is therefore evident, that, if all the excrementitious matter 

 of these two hundred persons were returned to the soil, it would 

 maintain in fertility more than two hundred acres of land, by the 

 aid of the silica contained in the soil, and the ammonia of the at- 

 mosphere. 



1st. The advantages of manure applied in the liquid, rather 

 than the solid form, consists, first above al], in the prompt man- 

 ner of its action, its solvent power, and affinity for solid sub- 

 stances. A great number of plants, such as turnips, cabbages, 

 flax, hemp, kc, the growth of which is rapid, require prompt 

 nourishment; they cannot wait for the slow and tedious decom- 

 position of solid manure for the food they require. Liquid ma- 

 nure suits them best, and is extremely beneficial to their advance- 

 ment, 



2d. In the immense saving of loss by the almost instantaneous 

 passage of the enriching matters into the soil, where they at once 

 combine with numerous elements, and enter directly into the 

 composition of plants, undergoing at the same time a certain de- 

 gree of fermentation, which increases its fertilizing effect without 

 advancing perceptibly the heat in the soil. By such liquid ferti- 

 lizers nourishment for plants is more equally distributed through 

 the particles of soil, and becomes more rapidly serviceable to the 

 growing crop than by any other plan of cultivation, and a much 

 smaller quantity of manure is required, as has been shown. 



